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Journal of the Korean Society of Traumatology 2008;21(1):15-21.
NEXUS and the Canadian Cervical Spine Rule as a Screening Tool for Computed Tomography Evaluation in Patients with Cervical Spine Injury
Yang Hwan Choi, Junho Cho, Minhong Choa, Yoo Seok Park, Hyun Soo Chung, Sung Pil Chung
Department of Emergency Medicine, Yonsei University College of Medicine, Korea. emjh@yuhs.ac.kr
경추 손상 환자에서 전산화 단층 촬영 시행을 위한 임상적 기준
:NEXUS 기준과 Canadian cervical spine rule
최양환·조준호·좌민홍·박유석·정현수·정성필
연세대학교 의과대학 응급의학교실
Abstract
PURPOSE
National Emergency X-Radiography Utilization Study (NEXUS) criteria and the Canadian Cervical Spine rule (CCR) are commonly used in cervical trauma patients to determine whether a plain cervical X-ray should be performed. However, plain cervical X-rays are so inaccurate that cervical spine computed tomography (CT) is often considered as a screening test. We studied the usefulness of the NEXUS criteria and the CCR for determining the need for a CT evaluation in the emergency department (ED).
METHODS
This prospective observational study was conducted from January 2007 to March 2008. Plain Xray and CT scans of the cervical spine were performed on blunt trauma patients with neck pain. The relevancy of CT was examined using the NEXUS criteria and the CCR. Sensitivity, specificity, positive predicted value, and negative predicted value analyses were performed to diagnose the cervical spine injury.
RESULTS
During the study period, 284 patients were enrolled in this study. The sensitivity, specificity, positive predicted value, and negative predicted value of the NEXUS criteria were 87.5%, 1.1%, 5.0%, and 60.0% respectively, while those of the CCR were 87.5%, 8.2%, 5.3%, and 91.6%. There were two missed fracture cases when the NEXUS criteria and the CCR were applied independently, however, no cases were missed when both were applied.
CONCLUSION
This study suggests the NEXUS and the CCR in combination can be used as a guide to CT evaluation for cervical spine injury in the ED.
Key Words: Cervical vertebrae; Computed tomography; Sensitivity; Specificity


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